Results 21 to 30 of about 5,481 (306)

Study of the electromagnetic processes in a converter wirh four zoned regulations of the voltage

Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2023
The article focuses on electromagnetic processes in electric circuits with semiconductor switches. A mathematical model of a semiconductor converter with four-zone output voltage control has been created so as to analyse electromagnetic processes in ...
V. Mykhailenko, J. Chunyak, O. Geraskin, M. Kovalevskiy   +3 more
doaj   +1 more source

Electromagnetic Transients on Power Plant Connection Caused by Lightning Event

, 2021
Lightning events can seriously damage the power systems and they represent one of the most dangerous causes of faults in the transmission lines. Usually, when one want to analyze such effects it is necessary to rely on approximate models or to simplify ...
Alice La Fata, La Fata, A, Nicora, M, Elisabetta Fiori, Delfino, F, Martino Nicora, Federico Delfino, Fiori, E   +7 more
core   +1 more source

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
S. Grivet-talocia, Grivet-Talocia, S., GRIVET TALOCIA, STEFANO   +2 more
core   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations

, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
core   +1 more source

Modeling of grain-oriented Si-steel and amorphous alloy iron core under ferroresonance using Jiles–Atherton hysteresis method

AIP Advances, 2018
Amorphous alloy is increasingly widely used in the iron core of power transformer due to its excellent low loss performance. However, its potential harm to the power system is not fully studied during the electromagnetic transients of the transformer ...
Wenxia Sima, Mi Zou, Ming Yang, Qing Yang, Daixiao Peng   +4 more
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ANALIZA ZAKŁÓCEŃ W SIECIACH ELEKTROENERGETYCZNYCH WYWOŁANYCH WYŁADOWANIAMI PIORUNOWYMI

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2014
W artykule przedstawiono złożoność problematyki analizy stanów nieustalonych napięć pojawiających się w układzie elektroenergetycznym wskutek bezpośrednich wyładowań piorunowych do elementów konstrukcyjnych linii napowietrznej.
Mariusz Benesz, Rafał Tarko
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A novel superimposed component‐based protection method for multi‐terminal transmission lines using phaselet transform

IET Generation, Transmission & Distribution, 2023
This paper presents a novel protection method for transmission lines that estimates the superimposed component phasor using phaselet transform. The phaselet transform computes the phasors over variable‐lenfgth data window at the instant of a fault, so it
Sajad Ansari, Navid Ghaffarzadeh
doaj   +1 more source

The use of real time digital simulation and hardware in the loop to de-risk novel control algorithms

, 2011
Low power demonstrators are commonly used to validate novel control algorithms. However, the response of the demonstrator to network transients and faults is often unexplored. The importance of this work has, in the past, justified facilities such as the
Watson, J., Lt J. Watson Rn, Blair, S., U. Mupambireyi, X. Li, Li, X., A. Roscoe, Rn, L.J.W., Booth, C., Daffey, K., Mupambireyi, U., Roscoe, A., S. Blair, K. Daffey, Loddick, S., S. Loddick, Roscoe, Andrew J., C. Booth   +17 more
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REDBACK: a Bayesian inference software package for electromagnetic transients [PDF]

Fulfilling the rich promise of rapid advances in time-domain astronomy is only possible through confronting our observations with physical models and extracting the parameters that best describe what we see.
Setzer, CN, Sarin, N, Galaudage, S, Sagués-Carracedo, A, Wallace, WF, Omand, CMB, Adhikari, N, Lamb, GP, Lin, ET, Hübner, M, Schulze, S   +10 more
core   +3 more sources

Synthesis of a system for secondary control of a rotor with an electromagnetic bearing

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
The control system for rotor electromagnetic suspension is considered. The parametrical synthesis of regulators is made by the method of the secondary control systems.
Yu. A. Makarichev, A. V. Starikov, I. S. Tkachenko   +2 more
doaj   +1 more source